ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,407, issued on Sept. 8, was assigned to TANAKA PRECIOUS METAL TECHNOLOGIES Co. Ltd. (Tokyo).
"Methane combustion catalyst and method for producing same, and method for purifying combustion exhaust gas" was invented by Kazutaka Takeda (Ibaraki, Japan), Shunsuke Kato (Ibaraki, Japan) and Shunji Kikuhara (Ibaraki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a methane combustion catalyst including platinum and iridium supported on a tin oxide carrier for combusting methane in a combustion exhaust gas containing sulfur oxide. In this methane combustion catalyst, in line analysis by electron probe microanalysis pe...